import * as Equal from "../Equal.js";
import * as Dual from "../Function.js";
import { constant, identity } from "../Function.js";
import { pipeArguments } from "../Pipeable.js";
import * as ChunkPatch from "./differ/chunkPatch.js";
import * as ContextPatch from "./differ/contextPatch.js";
import * as HashMapPatch from "./differ/hashMapPatch.js";
import * as HashSetPatch from "./differ/hashSetPatch.js";
import * as OrPatch from "./differ/orPatch.js";
import * as ReadonlyArrayPatch from "./differ/readonlyArrayPatch.js";
/** @internal */
export const DifferTypeId = /*#__PURE__*/Symbol.for("effect/Differ");
/** @internal */
export const DifferProto = {
[DifferTypeId]: {
_P: identity,
_V: identity
},
pipe() {
return pipeArguments(this, arguments);
}
};
/** @internal */
export const make = params => {
const differ = Object.create(DifferProto);
differ.empty = params.empty;
differ.diff = params.diff;
differ.combine = params.combine;
differ.patch = params.patch;
return differ;
};
/** @internal */
export const environment = () => make({
empty: ContextPatch.empty(),
combine: (first, second) => ContextPatch.combine(second)(first),
diff: (oldValue, newValue) => ContextPatch.diff(oldValue, newValue),
patch: (patch, oldValue) => ContextPatch.patch(oldValue)(patch)
});
/** @internal */
export const chunk = differ => make({
empty: ChunkPatch.empty(),
combine: (first, second) => ChunkPatch.combine(second)(first),
diff: (oldValue, newValue) => ChunkPatch.diff({
oldValue,
newValue,
differ
}),
patch: (patch, oldValue) => ChunkPatch.patch(oldValue, differ)(patch)
});
/** @internal */
export const hashMap = differ => make({
empty: HashMapPatch.empty(),
combine: (first, second) => HashMapPatch.combine(second)(first),
diff: (oldValue, newValue) => HashMapPatch.diff({
oldValue,
newValue,
differ
}),
patch: (patch, oldValue) => HashMapPatch.patch(oldValue, differ)(patch)
});
/** @internal */
export const hashSet = () => make({
empty: HashSetPatch.empty(),
combine: (first, second) => HashSetPatch.combine(second)(first),
diff: (oldValue, newValue) => HashSetPatch.diff(oldValue, newValue),
patch: (patch, oldValue) => HashSetPatch.patch(oldValue)(patch)
});
/** @internal */
export const orElseEither = /*#__PURE__*/Dual.dual(2, (self, that) => make({
empty: OrPatch.empty(),
combine: (first, second) => OrPatch.combine(first, second),
diff: (oldValue, newValue) => OrPatch.diff({
oldValue,
newValue,
left: self,
right: that
}),
patch: (patch, oldValue) => OrPatch.patch(patch, {
oldValue,
left: self,
right: that
})
}));
/** @internal */
export const readonlyArray = differ => make({
empty: ReadonlyArrayPatch.empty(),
combine: (first, second) => ReadonlyArrayPatch.combine(first, second),
diff: (oldValue, newValue) => ReadonlyArrayPatch.diff({
oldValue,
newValue,
differ
}),
patch: (patch, oldValue) => ReadonlyArrayPatch.patch(patch, oldValue, differ)
});
/** @internal */
export const transform = /*#__PURE__*/Dual.dual(2, (self, {
toNew,
toOld
}) => make({
empty: self.empty,
combine: (first, second) => self.combine(first, second),
diff: (oldValue, newValue) => self.diff(toOld(oldValue), toOld(newValue)),
patch: (patch, oldValue) => toNew(self.patch(patch, toOld(oldValue)))
}));
/** @internal */
export const update = () => updateWith((_, a) => a);
/** @internal */
export const updateWith = f => make({
empty: identity,
combine: (first, second) => {
if (first === identity) {
return second;
}
if (second === identity) {
return first;
}
return a => second(first(a));
},
diff: (oldValue, newValue) => {
if (Equal.equals(oldValue, newValue)) {
return identity;
}
return constant(newValue);
},
patch: (patch, oldValue) => f(oldValue, patch(oldValue))
});
/** @internal */
export const zip = /*#__PURE__*/Dual.dual(2, (self, that) => make({
empty: [self.empty, that.empty],
combine: (first, second) => [self.combine(first[0], second[0]), that.combine(first[1], second[1])],
diff: (oldValue, newValue) => [self.diff(oldValue[0], newValue[0]), that.diff(oldValue[1], newValue[1])],
patch: (patch, oldValue) => [self.patch(patch[0], oldValue[0]), that.patch(patch[1], oldValue[1])]
}));
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